The squad of six will be announced at the end of July, with the championships taking place from August 17-20.

Among the other riders named are Pippa Funnell with Filippo Friedenberg and her own Billy The Biz, Nicola Wilson with James and Jo Lambert’s Bulana, and Gerry and Mary Kemp and Janine Shewan’s One Two Many and Oliver Townend with Karyn Shuter and Angela Ballaghmor Class, and Angela Hislop’s Cooley SRS.

Willa is now the sixth top British rider in the World Eventing rankings.